graph TD
A[MCP Host<br/>Claude Desktop, Cursor IDE] --> B[MCP Client 1]
A --> C[MCP Client 2]
A --> D[MCP Client N]
B --> E[ArXiv Server]
C --> F[GitHub Server]
D --> G[Database Server]
style A fill:#e1f5fe
style E fill:#f3e5f5
style F fill:#f3e5f5
style G fill:#f3e5f5